Zobrazeno 1 - 10
of 930
pro vyhledávání: '"Hopkins, Patrick E"'
Autor:
Hoque, Md Shafkat Bin, Liao, Michael E., Zare, Saman, Liu, Zeyu, Koh, Yee Rui, Huynh, Kenny, Shi, Jingjing, Graham, Samuel, Luo, Tengfei, Ahmad, Habib, Doolittle, W. Alan, Goorsky, Mark S., Hopkins, Patrick E.
Bulk AlN possesses high thermal conductivity due to long phonon mean-free-paths, high group velocity, and long lifetimes. However, the thermal transport scenario becomes very different in a thin AlN film due to phonon-defect and phonon-boundary scatt
Externí odkaz:
http://arxiv.org/abs/2409.14328
Autor:
Mohr, Johannes, Aryana, Kiumars, Islam, Md. Rafiqul, Wouters, Dirk J., Waser, Rainer, Hopkins, Patrick E., Nag, Joyeeta, Bedau, Daniel
Understanding the thermal conductivity of chromium doped V2O3 is crucial for optimizing the design of selectors for memory and neuromorphic devices. We utilized the time-domain thermoreflectance technique to measure the thermal conductivity of chromi
Externí odkaz:
http://arxiv.org/abs/2409.10748
Autor:
Hoque, Md Shafkat Bin, Nye, Rachel A., Zare, Saman, Atkinson, Stephanie, Wang, Siyao, Jones, Andrew H., Gaskins, John T., Parsons, Gregory, Hopkins, Patrick E.
The multifaceted applications of polymers are often limited by their thermal conductivity. Therefore, understanding the mechanisms of thermal transport in polymers is of vital interest. Here, we leverage molecular layer deposition to grow three types
Externí odkaz:
http://arxiv.org/abs/2402.13215
Autor:
Hutchins, William, Tomko, John A., Hirt, Dan M., Zare, Saman, Matson, Joseph R., Diaz-Granados, Katja, He, Mingze, Pfeifer, Thomas, Li, Jiahan, Edgar, James, Maria, Jon-Paul, Caldwell, Joshua D., Hopkins, Patrick E.
The efficiency of phonon-mediated heat transport is limited by the intrinsic atomistic properties of materials, seemingly providing an upper limit to heat transfer in materials and across their interfaces. The typical speeds of conductive transport,
Externí odkaz:
http://arxiv.org/abs/2401.09594
Autor:
Hoque, Md Shafkat Bin, Hoglund, Eric R., Zhao, Boyang, Bao, De-Liang, Zhou, Hao, Thakur, Sandip, Osei-Agyemang, Eric, Hattar, Khalid, Scott, Ethan A., Surendran, Mythili, Tomko, John A., Gaskins, John T., Aryana, Kiumars, Makarem, Sara, Alwen, Adie, Hodge, Andrea, Balasubramanian, Ganesh, Giri, Ashutosh, Feng, Tianli, Hachtel, Jordan A., Ravichandran, Jayakanth, Pantelides, Sokrates T., Hopkins, Patrick E.
Insulating materials featuring ultralow thermal conductivity for diverse applications also require robust mechanical properties. Conventional thinking, however, which correlates strong bonding with high atomic-vibration-mediated heat conduction, led
Externí odkaz:
http://arxiv.org/abs/2312.02534
Autor:
Zhao, Boyang, Chen, Huandong, Ahsan, Ragib, Hou, Fei, Hoglund, Eric R, Singh, Shantanu, Zhao, Huan, Htoon, Han, Krayev, Andrey, Shanmugasundaram, Maruda, Hopkins, Patrick E, Seidel, Jan, Kapadia, Rehan, Ravichandran, Jayakanth
Chalcogenide perovskites, such as BaZrS$_3$, are emerging semiconductors with potential for high photovoltaic power conversion efficiency. The role of defects in the efficiency of the generation and collection of photo-excited carriers has not been e
Externí odkaz:
http://arxiv.org/abs/2310.03198
Autor:
Milich, Milena, Schonfeld, Hunter B., Boboridis, Konstantinos, Robba, Davide, Vlahovic, Luka, Konings, Rudy, Braun, Jeffrey L., Gaskins, John T., Bhatt, Niraj, Giri, Ashutosh, Hopkins, Patrick E.
We measure the thermal conductivity of solid and molten tungsten using Steady State Temperature Differential Radiometry. We demonstrate that the thermal conductivity can be well described by application of Wiedemann-Franz Law to electrical resistivit
Externí odkaz:
http://arxiv.org/abs/2309.01062
Autor:
Han, Zherui, Xiong, Zixin, Riffe, William T., Schonfeld, Hunter B., Segovia, Mauricio, Song, Jiawei, Wang, Haiyan, Xu, Xianfan, Hopkins, Patrick E., Marconnet, Amy, Ruan, Xiulin
Publikováno v:
Phys. Rev. B 108, 184306 (2023)
The lattice thermal conductivity ($\kappa$) of two ceramic materials, cerium dioxide (CeO$_2$) and magnesium oxide (MgO), is computed up to 1500 K using first principles and the phonon Boltzmann Transport Equation (PBTE) and compared to time-domain t
Externí odkaz:
http://arxiv.org/abs/2305.10918
Autor:
Toher, Cormac, Ridley, Mackenzie J., Tomko, Kathleen Q., Olson, David Hans, Curtarolo, Stefano, Hopkins, Patrick E., Opila, Elizabeth J.
Rare-earth silicates are the current standard material for use as environmental barrier coatings for SiC-based ceramic matrix composites as hot-section components in gas-turbine engines. Expanding the design space to all available rare-earth elements
Externí odkaz:
http://arxiv.org/abs/2303.02540
Autor:
Rost, Christina M., Schmuckler, Daniel L., Bumgardner, Clifton, Hoque, Md Shafkat Bin, Diercks, David R., Gaskins, John T., Maria, Jon-Paul, Brennecka, Geoffrey L., Li, Xiadong, Hopkins, Patrick E.
As various property studies continue to emerge on high entropy and entropy-stabilized ceramics, we seek further understanding of property changes across the phase boundary between \enquote{high-entropy} and \enquote{entropy-stabilized}. The thermal a
Externí odkaz:
http://arxiv.org/abs/2211.14957